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E-2
TROUBLESHOOTING
E-2
SAE-400 SEVERE DUTY
Observe all Safety Guidelines detailed throughout this manual
If for any reason you do not understand the test procedures or are unable to perform the tests/repairs safely, contact your Local
Lincoln Authorized Field Service Facility for technical troubleshooting assistance before you proceed.
CAUTION
PROBLEMS
(SYMPTOMS)
POSSIBLE AREAS OF
MISADJUSTMENT(S)
RECOMMENDED
COURSE OF ACTION
Engine will “crank” but not start.
Machine fails to hold the “heat”
constantly.
1. Air intake shut-off is closed.
Manually reset inside machine.
2. Out of fuel. Fill fuel tank.
3. Fuel shut off valve is in off posi-
tion.
4. Low battery voltage.
1. Rough or dirty commutator.
2. Brushes may be worn down to
limit of life.
3. Brush springs may be broken.
4. Field circuit may have variable
resistance connections or inter-
mittent open circuit, due to loose
connections or broken wire.
5. Electrode or work lead connec-
tions may be poor.
6. Wrong grade of brushes may be
installed on generator.
7. Field rheostat may be making
poor contact and overheating.
8. “Current Control” may not be
operating properly.
9. “Current Control” brushholder
contact springs may be worn out
or missing. Contact surface may
be dirty, rough and pitted.
10. “Current Control” brushholder
support stud and mating contact
surfaces may be dirty or pitted
and burned.
11. Engine running at varying
speeds.
If all recommended possible areas
of misadjustment have been
checked and the problem persists,
Contact your local Lincoln
Authorized Field Service Facility.